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Input Capture/Compare Match Interrupt: An interrupt is requested if the TGIE bit in TIER is
set to 1 when the TGF flag in TSR is set to 1 by the occurrence of a TGR input capture/compare
match on a particular channel. The interrupt request is cleared by clearing the TGF flag to 0. The
TPU has 16 input capture/compare match interrupts, four each for channel 0, and two each for
channels 1 and 2.
Overflow Interrupt: An interrupt is requested if the TCIEV bit in TIER is set to 1 when the
TCFV flag in TSR is set to 1 by the occurrence of TCNT overflow on a channel. The interrupt
request is cleared by clearing the TCFV flag to 0. The TPU has three overflow interrupts, one for
each channel.
Underflow Interrupt: An interrupt is requested if the TCIEU bit in TIER is set to 1 when the
TCFU flag in TSR is set to 1 by the occurrence of TCNT underflow on a channel. The interrupt
request is cleared by clearing the TCFU flag to 0. The TPU has two underflow interrupts, one each
for channels 1 and 2.
10.6.2
DTC Activation
The DTC can be activated by the TGR input capture/compare match interrupt for a channel. For
details, see section 8, Data Transfer Controller. A total of 16 TPU input capture/compare match
interrupts can be used as DTC activation sources, four each for channel 0, and two each for
channels 1 and 2.
10.6.3
DMAC Activation
The DMAC can be activated by the TGRA input capture/compare match interrupt for a channel.
For details, see section 7, DMA Controller. With the TPU, a total of three TGRA input
capture/compare match interrupts can be used as DMAC activation sources, one for each channel.
10.6.4
A/D Converter Activation
The A/D converter can be activated by the TGRA input capture/compare match for a channel. If
the TTGE bit in TIER is set to 1 when the TGFA flag in TSR is set to 1 by the occurrence of a
TGRA input capture/compare match on a particular channel, a request to start A/D conversion is
sent to the A/D converter. If the TPU conversion start trigger has been selected on the A/D
converter side at this time, A/D conversion is started. In the TPU, a total of three TGRA input
capture/compare match interrupts can be used as A/D converter conversion start sources, one for
each channel.
Rev. 3.0, 10/02, page 312 of 686
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